Iris diaphragm seal for an ostomy bag

Abstract

A sealing wafer for use in an ostomy appliance is provided. The sealing wafer has an attachment platform with a distal surface capable of being attached to an ostomy bag, a proximal surface facing towards the user during use, and an opening having an inner boundary defining a stoma receiving opening. The sealing wafer further includes a fixed base member attached to the attachment platform and a rotating member arranged to rotate relative to the fixed base member. A sealing member is coupled between the fixed base member and the rotating member for providing a seal around a stoma and defining a stoma sealing orifice. When the rotating member is rotated relative to the base member, this rotation causes an increased or a decreased tension to be applied to the sealing member so that the diametrical dimensions of the stoma sealing orifice change from a first diameter to a second diameter. Thus a mechanical sealing member that can be used with one-piece ostomy appliances as well as with two-piece ostomy appliances is provided.

Description

[0001]The invention relates to a seal for an ostomy bag which seals by means of a diaphragm contracting like an iris. Furthermore, the invention relates to an ostomy bag including such a seal.BACKGROUND[0002]In connection with surgery for a number of diseases in the gastro-intestinal or urinary tract, a consequence is, in many cases, that the colon, the ileum or the ureter has been exposed surgically and the patient is left with an abdominal stoma, or, in nephrostomy or ureterostomy, the ureter or a catheter is exposed in the back or the chest region or abdominal region, and the effluents or waste products of the body, which are conveyed through these organs, are discharged through the artificial orifice or opening and are collected in a collection bag, which is usually adhered to the skin by means of an adhesive wafer or plate having an inlet opening for accommodating the stoma / ureter / catheter. Also in connection with a fistula, the patient will have to rely on an appliance to coll...

AI Technical Summary

Benefits of technology

The invention is a sealing device for stomal openings that has a negligible tension when in a neutral position. It can expand and contract to adjust the diameter of the stoma opening and maintain a secure seal while preventing blood flow constriction that could be life-threatening. The device includes a fixed base and a rotation member, and the tension between them causes the sealing member to stretch and expand, resulting in an increased diameter of the stoma opening.

Problems solved by technology

The access of aggressive exudates to the skin is causing skin problems.

Frequent changing of the body side member of a two-piece appliance is undesirable due to the irritation of the skin, and the quality of life of the user may be improved and the nuisance of the wearing of an ostomy appliance reduced if the intervals between replacing the body side member can be increased

When cutting the edge of the hole of an adhesive wafer of a conventional one-piece ostomy appliance for adapting it to the size and shape of a stoma, the cutting is complicated by the fact that, in order to secure discretion, for decorative purposes and for providing softness, low noise generation and comfort, the bag is often made from an opaque material or covered and / or provided with a cover or front layer rendering it very difficult, if not impossible for the user or the nurse to observe the stoma area during determination of a cutting line, for adaptation of the hole or when applying the appliance.

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